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Overview

The Cardas Iridium RCA is an analog audio cable, the successor to the Cardas MicroTwin. This model combines advanced technology with artisanal craftsmanship to deliver high-quality sound reproduction.

Innovative Design in Service of Music

The Iridium cable features the Golden Ratio geometry, a hallmark of Cardas. This unique conductor arrangement, inspired by the golden ratio, is designed to optimize signal transmission and minimize interference. Pure copper Litz wires of varying gauges are concentrically wound, with the thinnest in the center and the thickest on the outer layers. This complex structure reduces cable inductance and resonance, resulting in purer sound reproduction.

Premium Materials for Uncompromising Quality

True to its reputation for excellence, Cardas has made no compromises in material selection. The Iridium uses four pure copper conductors of 24.5 AWG, ensuring optimal conductivity. The PPFE (expanded fluorinated polypropylene) insulation provides excellent dielectric properties while maintaining cable flexibility. A dual shielding system of PFA and carbon effectively protects the signal from external electromagnetic interference.

100% American Handcrafted Manufacturing

Despite its affordable price for a high-end cable, the Iridium is entirely handcrafted in the United States at Cardas’ Oregon workshops. Each cable is meticulously assembled by hand, ensuring consistent quality and optimal control at every stage of production.

High-Precision Connectors

The RCA GRCM connectors used on the Iridium are specifically designed by Cardas to provide optimal contact. Their non-magnetic structure and rhodium-over-silver plating ensure excellent conductivity and resistance to oxidation. For XLR versions, Cardas has chosen Neutrik connectors, renowned for their reliability and performance.

A Balanced and Refined Sound Signature

The Iridium stands out for its ability to deliver a wide and precise soundstage while maintaining remarkable tonal balance. The midrange is rich and detailed, offering excellent presence to vocals and instruments. The highs are smooth and free of harshness, yet retain clarity and definition. In the bass range, the articulation and depth add body and realism to the listening experience.

A Versatile Cable to Enhance Your System

Whether connecting a source to a preamplifier or a preamplifier to a power amplifier, the Iridium will bring out the best in your hi-fi system. Its neutrality and transparency make it an excellent tool for revealing the qualities of your equipment without excessive coloration. It particularly excels in reproducing timbres and micro-details, allowing you to rediscover your favorite recordings in a new light.

The Evolution of a Classic: From MicroTwin to Iridium

The Iridium succeeds the popular MicroTwin cable in the Cardas lineup. While both models share a common philosophy, the Iridium features several notable improvements. The conductor geometry has been optimized for better interference immunity. The insulating materials have also been upgraded to enhance dielectric properties. Finally, the connectors have been updated to provide even more reliable contact. The result is a cable that retains the musical qualities of the MicroTwin while achieving new levels of transparency and definition.

Technical Specifications

Dimensions and Construction

  • Outer diameter: 7.62 mm
  • Conductors: 4 × 24.5 (AWG gauge)
  • Construction: 99.99% oxygen-free pure copper with natural peripheral shielding (SPN)
  • Geometry: golden ratio, constant quality factor, cross-field, pure copper Litz wire

Insulation and Protection

  • Double shielding
  • Outer sheath: extruded thermoplastic elastomer (TPR)
  • Insulation: polyurethane sheath
  • Conductors assembled in a polytetrafluoroethylene (PTFE) band
  • Tinned copper shielding
  • Outer sheath in fluorinated ethylene propylene (FEP)

Audio Performance

  • Sound signature:
    • Balanced
    • Precise
    • Rich mids
    • Smooth highs
    • Dynamic bass

Frequently Asked Questions

What is the difference between the Iridium and its predecessor, the MicroTwin?

The Iridium represents an evolution of the MicroTwin, with optimized conductor geometry and improved insulating materials. It generally offers better definition and a wider soundstage than its predecessor.

Does the Iridium cable require a break-in period?

Like most high-quality audio cables, the Iridium can benefit from a break-in period. Around 100 hours of use will allow the cable to fully express its potential, with a gradual opening of the soundstage and refinement of details.

Can the Iridium be used for a subwoofer connection?

While primarily designed for line-level connections, the Iridium can be used to connect an active subwoofer. Its ability to faithfully transmit low frequencies makes it a viable option for this application.

How should I maintain my Iridium cable to preserve its performance?

It is recommended to handle the cable with care, avoiding overly tight bends. Occasionally cleaning the connectors with a specialized audio contact cleaner can help maintain connection quality. Avoid exposing the cable to excessive heat or moisture.

User reviews

Pierre

Cable replacing an Atlas; it's a notch above. Very wide soundstage, you gain precision without it being aggressive and, as always with Cardas, quality craftsmanship. Thanks to HomeCinéSolutions for the value for money.

Comment from March 14, 2026 — Experience from February 28, 2026

Automatically translated — Show original (French)
Câble en remplacement d'un Atlas; c'est un cran au dessus. Scène sonore très large, on gagne en précision sans être agressif et comme toujours chez Cardas, fabrication de qualité. Merci à HomeCinéSolutions pour le rapport qualité prix.

Gino

excellent cables, wonderful sound, fast delivery, everything fine, perfect

Comment from August 07, 2025 — Experience from July 27, 2025

Automatically translated — Show original (Italian)
ottimi cavi suono meraviglioso consegna veloce tutto bene perfetto

Sylvain

Cables purchased to connect my amp to my subwoofer (with the Audioquest splitter) since my amp doesn’t have a sub output. Short and efficient connection.
The low frequencies are clear, no muddiness.

Comment from June 28, 2025 — Experience from November 26, 2024

Automatically translated — Show original (French)
Câbles achetés pour relier mon ampli à mon subwoofer (avec le split audioquest) car pas de sortie sub sur mon ampli. Liaison courte et efficace.
Les infras sont nettes, pas de roulage.
  • Eco-contribution included in the sale price.
  • Manufacturer reference: RCA IRIDIUM 2 X 1M
HomeCineSolutions
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